System
Windows Tools XPy (XP-AntiSpy like) http://xpy.whyeye.org
Microsoft PowerToys http://www.microsoft.com
Firewall Zone Alarm http://www.zonealarm.com
CoreSecurity http://force.coresecurity.com
IP Blocker PeerGuardian 2 http://phoenixlabs.org
Protowall http://www.bluetack.co.uk
AntiVirus AntiVir Personal Edition http://www.free-av.de
ClamWin http://www.clamwin.com
AntiMaleware SpyBot http://www.safer-networking.org
Verschlüsselung GNU Privacy Guard & WinPT (GUI) http://www.gnupg.org [Installer]
OpenSSL http://www.openssl.org [Installer]

Viewer & Player
Text Notepad2 http://www.flos-freeware.ch/notepad2.html
PDF: Sumatra http://blog.kowalczyk.info/software/sumatrapdf/
ASCII Art: Damn Nfo Viewer -x- or -x-
Bilder XnView http://www.xnview.com, http://www.xnview.com/de/
Powerpoint: Viewer http://www.microsoft.com
Audio SongBird http://www.getsongbird.com, http://www.songbirdnest.de
foobar2000 http://www.foobar2000.org
Video VideoLan Client (auch vcd / dvd) http://www.videolan.org
mPlayer (auch vcd / dvd) http://www.mplayerhq.hu
Streams FeedReader (RSS & ATOM) http://www.feedreader.com

Codex
Audio Lame (mp3) Sourceforge [Binary]
Ogg - Vorbis (freies Audio-komprimierungs Format) http://www.vorbis.com
Flac (freies verlustfreies Audio-komprimierungs Format) Sourceforge
Speex (freies Audio-komprimierungs Format für Sprache) http://www.speex.org
Video Xvid http://www.xvid.org [Binary]
Theora http://www.theora.org [Installer]
Filter ffdshow (MPEG-4: xvid/divx) Sourceforge

Programme
Editor Notepad++ Sourceforge
Programmers Notepad http://www.pnotepad.org
Vim & Cream for Vim http://www.vim.org & Sourceforge
Office OpenOffice (komplette Office Suite) http://go-oo.org
AbiWord (Textbearbeitung) http://www.abisource.com
Gnumeric (Tabellenkalkulikation) http://www.gnome.org/projects/gnumeric/
Dia (Diagrammbearbeitung, Visio like) http://www.gnome.org/projects/dia/
Desktop Publishing Scribus http://www.scribus.net
Bildbearbeitung Gimp http://gimp.org
Blender (3D) http://www.blender.org
Inkscape (Vektorgrafik) http://www.inkscape.org
Audiobearbeitung Audacity Sourceforge
winLame (wav2mp3, wav2ogg...) Sourceforge
Videobearbeitung VirtualDubMod Sourceforge
Rippen CDex (AudioCD Ripper) Sourceforge
Gordian Knot & AutoGK (DVD Ripper) http://www.autogk.net
Brennen InfraRecorder Sourceforge
Organizer Rainlendar (Desktop Kalender) http://www.rainlendar.net/
Sunbird (Mozilla Kalender) http://www.mozilla.org/projects/calendar/sunbird.html, http://www.sunbird-kalender.de

Tools
Packer PeaZip (7ZIP, ZIP, RAR, *NIX Formate, ISO Formate, ACE...) Sourceforge
Konverter BeSweet (Audiokonvertierung) http://dspguru.doom9.net
ImageMagic (Bildkonvertierung) http://www.imagemagick.org
PDFCreator (virt. PDF printer) http://sector7g.wurzel6.de/pdfcreator
Audiotools QuickNamer (automatische Metadaten von MusicBrainz) Sourceforge
Mp3 Gain (automatische Lautstärkeanpassung) Sourceforge
Mp3 Trim (automatische Stille-Entfernung) http://www.mptrim.com
Streamripper (Record Audiosstreams) Sourceforge
Total Recorder (nimmt auf was gerade läuft) -x- [google]
DJ Mix-Lite (Musik mixen) http://djmixpro.com/djmixlite/
Videotools Gspot (Displays Codec Infos) http://www.headbands.com/gspot/
AviSynth (FrameServer & Post-Production) http://www.avisynth.org
OggMux (Creates OGM Files) Sourceforge
AviMux (Creates MKVs & multi-stream AVIs) -x- [google]
Brenntools DeamonTools (Virt.Drive) http://www.daemon-tools.cc
Funk GNU Radio (Software "Radio") http://www.gnu.org/software/gnuradio/
Monitore Motherboard Monitor (Motherboard Infos) http://mbm.livewiredev.com
Rainmeter (System Monitor, Themable) Google Code
Sicherheit TrueCrypt (Ordner, Platte, Wechselmedien verschlüsseln) http://www.truecrypt.org
KeePass Password Safe (Keyring) Sourceforge
Cracker John the Ripper (Unix Passwords) http://www.openwall.com/john/
Cain & Abel (Win Security Cracker) http://www.oxid.it/cain.html
L0phtCrack (LC5 Win32 Passwords) [Binary from Insecure.org] & [KeyGen from Insecure.org]
Synchronizer Unison http://www.cis.upenn.edu/~bcpierce/unison/
Backup Partition Saving http://www.partition-saving.com
Misc Gnu Tools Sourceforge & Sourceforge
WinMerge (diff & merge) Sourceforge
Hex-Editor MX (HexEditor) http://www.nextsoft.de
Sysinternals Tools http://www.sysinternals.com

Netzwerk
Verschlüsselung SSH für Windows http://www.freesshd.com (Server) Sourceforge (another Server) & Putty (Client)
OpenSSL http://www.openssl.org [Installer]
Stunnel (Tunnelt Protokolle über SSL) http://www.stunnel.org
Portscanner nmap http://www.insecure.org/nmap/
FPort, cPorts (lokale Port-Statistik) http://www.foundstone.com, cPorts
Sniffer Ettercap Sourceforge
Kismet (Wireless) http://www.kismetwireless.net
NetStumbler (Wireless) http://www.netstumbler.com
dSniff (Sniffing Tools) http://www.datanerds.net/~mike/dsniff.html
Analyzer Wireshark (Protocol Analyzer) http://www.wireshark.org
WinDump http://www.winpcap.org/windump/
Security Snort (IDS - Intrusion Detection) http://www.snort.org
OSSEC HIDS (Log Analyzer) http://www.ossec.net
Security Scanner Nessus http://www.nessus.org
Nikto (Web Server) http://www.cirt.net/code/nikto.shtml
Metasploit (Exploit Framework) http://www.metasploit.com
NBTScan (NetBIOS Scanner) http://www.unixwiz.net/tools/nbtscan.html
Cracker Hydra (Remote Passwortcracker) http://www.thc.org/thc-hydra/
Aircrack (WEP/WPA) http://www.aircrack-ng.org
Misc Netcat http://www.vulnwatch.org/netcat/ Google
SamSpade (nslookup,whois,traceroute,finger...) http://www.samspade.org/ssw/
ngrep (Network grep) Sourceforge
nTop (Network Analyse) http://www.ntop.org
Shareing iFolder (Net/Web-Shares) http://www.ifolder.com

Internet
Browser FireFox Mozilla
::Plugins VLC Plugin - Videos abspielen http://www.videolan.org
Flash Adobe
Shockwave Adobe
::Extensions AdBlock (Plus) Mozilla
NoScript Mozilla
Mail ThunderBird Mozilla
::Extensions Wörterbücher (Rechtschreibprüfung) Mozilla
Contacts Sidebar Mozilla
EnigMail (Mail Verschlüsselung) Mozilla
Download Httrack (WebSeiten downloaden) & SpiderZilla (Firefox Extension) http://www.httrack.com & http://spiderzilla.mozdev.org (en)
FTP FileZilla (FTP & SecureCopy SSL FTP) Sourceforge
IRC xChat http://www.xchat.org (sharerware) freeware version
Personal Messanger Gaim (IRC, ICQ, AIM, MSN, Jabber,Yahoo,...) http://www.pidgin.im
Filesharing Emule (ed2k) http://emule-project.net
Deluge (Bittorrent) http://deluge-torrent.org
VPN OpenVpn http://openvpn.net
Anonymity ToR http://tor.eff.org

Server
Webserver LightTpd http://www.lighttpd.net
Apache http://httpd.apache.org
Mailserver XMail http://www.xmailserver.org
FTP FileZilla Sourceforge
Proxy Squid http://www.squid-cache.org
Privoxy http://www.privoxy.org
DNS Posadis Sourceforge
Datenbank SQLite http://www.sqlite.org
MySQL http://www.mysql.com (DE)
PostgreSQL http://www.postgresql.org
Audio/Video Streams VideoLAN (Audio & Video Streaming) http://www.videolan.org
IceCast http://www.icecast.org
VNC TightVnc http://www.tightvnc.com
Teamspeak Mumble Sourceforge

Programmieren
IDE Eclipse http://www.eclipse.org
::Plugins ::WebTools (HTML, xHTML, CSS, XML...) http://www.eclipse.org/webtools/
::PHPeclipse (PHP) http://phpeclipse.de
::PyDEv (Python) Sourceforge
::Epic (Perl) Sourceforge
::Subclipse (SVN) http://subclipse.tigris.org
Bloodshed (C/C++) http://www.bloodshed.net
Compiler Nasm (80x86 Assembler) Sourceforge
Mingw (c/c++) http://www.mingw.org
Java http://java.sun.com
Skripting Python http://www.python.org
Ruby http://www.ruby-lang.org
Perl Active Perl or Strawberry Perl
Libraries Gtk+ (GUI Kit) http://www.gtk.org [Installer]
SDL (MultiMedia) http://www.libsdl.org (DE)
PCRE (Perl Compatible Regular Expressions) http://www.pcre.org
libgcrypt (Verschlüsseln) FSF
Winpcap (Packet Capture) http://www.winpcap.org
Scintilla (Code Highlighting) Sourceforge
Tools Glade (GTK+ GUI Builder) Sourceforge
Debugger Ollydbg http://www.ollydbg.de
RR0D http://rr0d.droids-corp.org/
Disassembler IDA (Disassembler, Debugger...) http://www.hex-rays.com/idapro/
PeDasm -x- [google]
Wdasm [google]
DeCompliler Reverse Engineering Compiler -x- [google]
Dokumentation Doxygen http://www.stack.nl/~dimitri/doxygen/
Versionskontrolle GIT Google Code (GUI)
Bazaar http://bazaar-vcs.org
Tortoise SVN (SVN fürs KontextMenu) http://tortoisesvn.tigris.org
WebFrontends Trac (SVN WebFrontend + Bugtracking) http://www.edgewall.com/trac/
Bugzilla (Bugtracking) http://www.bugzilla.org
Packer Upx (Exe. Packer) Sourceforge
Installer NSIS Sourceforge
INNO http://www.jrsoftware.org/isinfo.php

Web Development
Tools phpMyAdmin (Datenbank Managemant) http://www.phpmyadmin.net
HTML Tidy (HTML Code säubern) Sourceforge
Application server Zope http://www.zope.org
Zend http://www.zend.com
Blue Dragon (ColdFusion) http://www.newatlanta.com/products/bluedragon/
Web Engines Django http://www.djangoproject.com
Rails http://www.rubyonrails.org
Turbo Gears http://www.turbogears.org
Cake PHP http://cakephp.org
CMS Plone http://plone.org
Joomla http://www.joomla.org
Drupal http://drupal.org
Typo3 http://typo3.com
Blogs WordPress (PHP MySql) http://wordpress.org
Forum PHPBB http://www.phpbb.com
Wiki MoinMoin http://moinmoin.wikiwikiweb.de
MediaWiki http://www.mediawiki.org/wiki/MediaWiki
Shops Magento Commerce http://www.magentocommerce.com
OS Commerce http://www.oscommerce.com, http://www.oscommerce.de
Libraries Clearsilver (Template Engine) http://www.clearsilver.net
Smarty (PHP - Template Engine) http://smarty.php.net
BB Code Parser http://pear.php.net
ImageMagick (Bildbearbeitung) http://www.imagemagick.org
Generic Syntax Highlighter http://qbnz.com/highlighter/
Gallery http://gallery.menalto.com
Markdown (text2html Engine) http://daringfireball.net/projects/markdown/
Textile (text2html Engine) http://www.textism.com/tools/textile/
Frameworks Hibernate (JAVA - Persistenter Datenbankzugriff) http://www.hibernate.org
Spring (JAVA - Framework) http://www.springframework.org

Emulatoren
x86 Bochs (virt. PC) Sourceforge
DosBox (Dos) Sourceforge
Cygwin (Linux) http://www.cygwin.com
Cooperative Linux (Linux) http://www.colinux.org
Systeme Frodo or ccs64 (c64) http://www.computerbrains.com/ccs64/
WinUae (Amiga) http://www.winuae.net
WinSTon / STew or Steam (Atari ST) http://steem.atari.st
Konsolen Meka (MasterSystem) http://www.smspower.org/meka/
Gens (MegaDrive & Genesis) http://gens.consolemul.com & Sourceforge (SF Projekt)
NesTen (nes) http://tnse.zophar.net/NESten.htm
ZSnes (snes) http://www.zsnes.com
Project 64 (n64) http://www.pj64-emu.com
VisualBoy Advanced (gba) http://vba.ngemu.com
AdriPSX (ps1) http://adripsx.psxemu.com
PCSX2 (ps2) http://www.pcsx2.net
cxbx (xbox) http://www.caustik.com/cxbx/

Andere Betriebssysteme
Bootbare Systeme Knoppix (KDE) http://knoppix.net, http://www.knoppix.org/
Knoppix STD (security enhanced) http://www.knoppix-std.org
GNU/Linux Ubuntu http://www.ubuntulinux.org | http://www.ubuntuusers.de (Forum)
Fedora http://fedoraproject.org
Debian http://www.debian.org | http://www.debianforum.de (Forum)
Gentoo http://www.gentoo.org, http://www.gentoo.de
Linux Kernel http://www.kernel.org
Distrowatch or LinuxIso (Distibutionen) http://www.distrowatch.com or http://www.linuxiso.org
BSD OpenBSD http://www.openbsd.org
FreeBSD http://www.freebsd.org
DOS FreeDOS http://www.freedos.org

Freie Formate
Bilder PNG (Bildformat) http://www.libpng.org/pub/png/ [Wikipedia]
MNG (Animationsformat) http://www.libpng.org/pub/mng/ [Wikipedia]
SVG (Vektorgrafikformat) http://www.w3.org/Graphics/SVG/ [Wikipedia]
DjVu (Format für gescannte Dokumente) http://www.djvuzone.org
Audio Ogg - Vorbis (Audiokomprimierungs-Format) http://www.vorbis.com [Wikipedia]
Speex (Sprachkomprimierungs-Format) http://www.speex.org [Wikipedia]
Flac (verlustfreies Audiokomprimierungs-Format) Sourceforge [Wikipedia]
Video Xvid (MPEG-4 Codec) http://www.xvid.org [Wikipedia]
Ogg - Theora http://www.theora.org/ [Wikipedia]
Container Matroska (Audi/Video Container) http://www.matroska.org [Wikipedia]
OGG (Audi/Video Container) http://www.xiph.org [Wikipedia]
Dokumente DocBook Sourceforge [Wikipedia]

Lizenzen
GNU General Public License (GPL) http://www.fsf.org/licenses/gpl.html [Wikipedia]
GNU Lesser General Public License (LGPL) http://www.gnu.org/licenses/lgpl.html [Wikipedia]
GNU Free Documentation License (GFDL) http://www.gnu.org/copyleft/fdl.html [Wikipedia]
BSD-Lizenz http://www.opensource.org [Wikipedia]
Creative Commons http://creativecommons.org [Wikipedia]

WikiMedia
Wikipedia Die freie Enzyklopädie http://wikipedia.org (DE)
Wiktionary Das freie Wörterbuch http://wiktionary.org (DE)
WikiBooks Freie Bücher (Lehrnmaterialien) http://wikibooks.org (DE)
WikiSource Freie Texte http://wikisource.org (DE)
WikiQuote Freie Zitatensammlung http://wikiquote.org (DE)

Resources
Anonymität Proxy List http://www.rrdb.org
ToR http://tor.eff.org
Mail Liste mit POP3 & SMTP Servern http://www.patshaping.de/hilfen_ta/pop3_smtp.htm
Anonyme Remailer Sourceforge
Sharehoster Imageshack (nur Bilder) http://imageshack.us
Directupload (nur Bilder) http://www.directupload.net
Rapidshare http://rapidshare.de
Blog Hosters Blogger http://www.blogger.com
LiveJournal http://www.livejournal.com
Services Social Music Network http://www.last.fm
Flickr (Imagehosting) http://www.flickr.com
Digg (Newsrating) http://digg.com
Technorati (Blogosphere Index) http://www.technorati.com
del.icio.us (Online Bookmarks) http://del.icio.us, http://www.spurl.net, http://scuttle.org
Lite mit "social networking websites" http://en.wikipedia.org